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avcodec/v408enc: Avoid copying packet data, allow user-supplied buffers 

When the packet size is known in advance like here, one can avoid
an intermediate buffer for the packet data by using
ff_get_encode_buffer() and also set AV_CODEC_CAP_DR1 at the same time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-04-25 01:43:26 +02:00
parent 27b0a5204d
commit d914da3bb6
1 changed files with 5 additions and 1 deletions
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6
libavcodec/v408enc.c
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@ -22,6 +22,7 @@
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "encode.h"
#include "internal.h"
static av_cold int v408_encode_init(AVCodecContext *avctx)
@ -39,7 +40,8 @@ static int v408_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
uint8_t *y, *u, *v, *a;
int i, j, ret;
if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, 0)) < 0)
ret = ff_get_encode_buffer(avctx, pkt, avctx->width * avctx->height * 4, 0);
if (ret < 0)
return ret;
dst = pkt->data;
@ -79,6 +81,7 @@ const AVCodec ff_ayuv_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_AYUV,
.capabilities = AV_CODEC_CAP_DR1,
.init = v408_encode_init,
.encode2 = v408_encode_frame,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
@ -91,6 +94,7 @@ const AVCodec ff_v408_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_V408,
.capabilities = AV_CODEC_CAP_DR1,
.init = v408_encode_init,
.encode2 = v408_encode_frame,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },